 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.osgi.service.resolver;

 /**
  * A specification which depends on a generic capability
  * @since 3.2
  */
 public interface GenericSpecification extends VersionConstraint {
     /**
      * The optional resolution type
      * @see #getResolution()
      */
     public static final int RESOLUTION_OPTIONAL = 0x01;
     /**
      * The multiple resolution type
      * @see #getResolution()
      */
     public static final int RESOLUTION_MULTIPLE = 0x02;

     /**
      * Returns a matching filter used to match with a suppliers attributes
      * @return a matching filter used to match with a suppliers attributes
      */
     public String getMatchingFilter();

     /**
      * Returns the type of generic specification
      * @return the type of generic specification
      */
     public String getType();

     /**
      * Returns the resolution type of the required capability. The returned
      * value is a bit mask that may have the optional bit {@link #RESOLUTION_OPTIONAL}
      * and/or the multiple bit {@link #RESOLUTION_MULTIPLE} set.
      *
      * @return the resolution type of the required capability
      */
     public int getResolution();

     /**
      * Returns the suppliers of the capability. If the the resolution is multiple then
      * more than one supplier may be returned
      * @return the suppliers of the capability
      */
     public GenericDescription[] getSuppliers();
 }

